Micropropagation with nodal cutting is one of the main method for compensating the shortage of potato (Agria, Boren, Sante and Savalan) seed for tuber production in the world. Treatments included 4 concentrations of Coumarin(15, 20, 25 or 30 mg/L), Paclobutrazol(0.001, 0.01, 0.1 or 0.5 mg/L), Thidiazuron(0.01, 0.1, 0.5 or 1 mg/l ) and Ethephon(0.5, 1, 2 or 3 mg/L) with 4 potato cultivars: Agria, Boren, Sante and Savalan. Results showed that Savalan was the most efficient cultivar for producing microtubers with better quality. The best plant growth regulator for enhancing microtuber number (MTN) was Thidiazuron. For improving the microtuber weight (MTW) and microtuber size (MTS), Coumarin and Thidiazuron were the best plant growth regulators. The most efficient levels of Thidiazuron for significant increase d in MTN of 1 mg/L and for weight and size was 0.5 mg/L. In addition,the most enhancements of MTW and MTS with Coumarin levels , sequentially 15 and 30 mg/l wasobsereved.
کلید واژگان :Potato, Plant growth regulators, Coumarin, Paclobutrazol, Thidiazuron, Etephon
ارزش ریالی : 300000 ریال
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